Elon Musk's performance on Tesla's earnings conference call have been gathering a lot of media attention where he dismissed analysts' questions as "boring."One of the analysts cut off by Tesla chief executive Elon Musk during the company's latest earnings call claims to be telling his clients to "hold Tesla accountable" for its performance.

In an open letter entitled "Dear Elon," Joseph Spak defended his questioning."Some of these questions can seem dry, boring or short-term focused, but hopefully you can appreciate that anyone looking to invest in Tesla's future must first be comfortable with its present," Spak wrote."I would be elated to host you for a webcast or call to talk extensively about all the amazing industry innovations you are driving and dispel any investor misconceptions you perceive," he added.Musk, who hosted Tesla's earnings conference call last week to detail the company's quarterly progress, grew frustrated by what he characterized as "boring, bonehead" questions from industry analysts.So when Spak later asked Musk for clarification on the company's Model 3 reservations on the call, he didn't get the answer he was looking for."We're going to go to YouTube," Musk declared. "These questions are so dry. They're killing me."Source: CNBC